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Buy Metronidazole after completing our online consultation for bacterial vaginosis

Bacterial Vaginosis
Prices of Metronidazole Tablets
14 tablets (£17.99)

Prices include next-day delivery and prescription

14 tablets £17.99

Select your treatment after the consultation:

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More information about Metronidazole

What is Metronidazole?

Metronidazole is a medicine used to treat infections caused by bacteria, such as

It is sometimes sold under names like Flagyl and Zidoval.

Metronidazole comes as a tablet or gel. This is called a topical treatment. If your infection is severe, the doctor may give you an injection instead.

If you need treatment for BV or an STI called trichomoniasis, you can buy Metronidazole here at HealthExpress.

What is Metronidazole used for?

Metronidazole can be used to treat many different conditions. Here is a list of some of them:

  • bacterial vaginosis (BV)
  • trichomoniasis - an STI
  • rosacea
  • stomach ulcers (peptic ulcers)
  • giardiasis (infection in the small intestine)
  • pelvic inflammatory disease (PID)
  • gum and tooth infections
  • parasitic infections, such as amoebiasis
  • infections caused by bacteria (e.g. infected wounds or cuts)

Unless you need treatment for the first or second illness on the list, you can only get Metronidazole from your primary doctor.

How does Metronidazole work?

The treatment works by stopping the bacteria from growing. This makes it much easier for your body to fight off the infection.

When bacteria cells enter your body, they want to make copies of themselves as quickly as they can. This is how the infection spreads. When you take the medicine, the bacteria won’t be able to grow easily.

By stopping the infection from spreading, your body has a much better chance of fighting it off.

Once you start taking the medicine, your symptoms might go away within a couple of days. But, you must keep taking the medicine until you have finished the whole course. If you stop the medicine too early, you risk the infection coming back again.

For BV and trichomoniasis, you usually only need to take the medicine for 5-7 days. For other conditions like rosacea, you might be on the treatment for much longer (from 6 weeks up to 4 months).

How do I use it?

Metronidazole tablets

One dose of the medicine is 400mg.

If you are taking this treatment for BV or trichomoniasis, here is a list of what to do:

  • take one tablet in the morning and the evening, for 7 days
  • take the tablet with water, after a meal
  • swallow the tablet whole - do not chew or break the tablet
  • if you forget to take your tablet, take one as soon as you remember
  • if you have forgotten to take your tablet all day, skip it and wait until your evening dose
  • do not take two tablets at the same time
  • if you take more medicine than you should, seek emergency medical help

Do not drink any alcohol whilst taking this medicine.

Metronidazole gel

Metronidazole gel is used to treat BV. For the medicine to work, you must apply it inside the vagina. The gel must be applied once a day, for 5 days in a row.

Metronidazole gel can be sold under the name Zidoval.

For a full guide on how to use the gel, please read the leaflet that is included in your order. But here is a brief guide.

  • wash your hands thoroughly before starting
  • open the tube by breaking the foil seal with the pointed end of the cap
  • take the applicator and screw it onto the tube
  • squeeze the tube until the applicator is full of gel
  • get comfortable and put the applicator into your vagina (as far as it will go)
  • slowly push the plunger to release all of the gel
  • take the applicator out and throw it into the bin straight away

Remember to take the whole course of medicine, even if your symptoms go away.

If you forget to apply the gel, do it as soon as you remember.

Do not take more than one dose at a time. If you take more than you should, seek emergency medical help.

Are there possible side effects?

As with all prescription medicines, Metronidazole may cause some side effects. However, the most common side effects are mild and will go away by themselves. But just in case, please read the following possible side effects.

Some common side effects could be:

  • diarrhoea
  • constipation
  • nausea
  • vomiting or stomach pain
  • unpleasant or metallic taste in the mouth
  • loss of appetite
  • vaginal thrush
  • skin reaction (such as itching, redness, burning, or stinging)
  • unusual feeling on the tongue
  • dry skin

If you have an allergic reaction to the medicine, please speak to a doctor right away. An allergic reaction can cause swelling or it might be difficult to breathe.

If you want to read a complete list of side effects, you can find all the information on the leaflet included with your order.

Who can take Metronidazole?

Most people can take Metronidazole safely. But, be careful taking this medicine if you have:

  • had an allergic reaction to Metronidazole in the past
  • liver disease
  • kidney problems
  • a stomach or intestinal disease
  • a blood cell disorder (such as anaemia or leukopenia)
  • epilepsy or a nerve disorder
  • an inflammatory bowel disease (such as Crohn’s disease)

If you are pregnant or breastfeeding, check with your doctor before using this medication.

When you do your online consultation, make sure to mention all of your past or current conditions. This helps the doctor know if the medicine is safe for you.

Some other medicines can interact with Metronidazole. Make sure to let the doctor know of any medications you are taking - even if they are over-the-counter or recreational drugs.

Be careful of taking Metronidazole if you take any of these medicines:

  • blood-thinning tablets (anticoagulants) e.g warfarin
  • lithium (a mood stabiliser)
  • medicines for epilepsy e.g phenobarbital or phenytoin
  • cancer treatments
  • ciclosporin (taken after an organ transplant)
  • disulfiram (used to treat alcoholism)

If you’re not sure if any of the above apply to you, speak to a doctor before taking this medicine.

What precautions should I take?

You mustn’t drink any alcohol when you are taking this medicine. Alcohol can cause bad reactions like headaches, feeling sick, and being dizzy.

You should tell anyone you have recently had sex with about your infection. They might need treatment too.

If you take Metronidazole for a long time, there is a small risk of getting nerve damage (something called peripheral neuropathy). This causes pain, tingling, or numbness if your hands, arms, and feet.

Please talk to your doctor if you start to feel any sudden pain when taking the treatment.

How do I buy Metronidazole online?

You can buy Metronidazole tablets and gel here at HealthExpress. All you need to do is fill out a short online form which will be reviewed by one of our UK-registered doctors.

If the doctor says it is safe for you to take the medicine, it will be sent right to your front door, with free next-day delivery.

The parcel will also be delivered in plain and discreet packaging to maintain your privacy.

Metronidazole info
Product nameMetronidazole
Active ingredient(s)Metronidazole
Lowest price£17.99
Trustpilot rating4.7/5
Trustpilot reviews263
AvailabilityIn stock
DescriptionMetronidazole is an antibiotic used to treat the genital infections bacterial vaginosis and trichomonas vaginalis as well as mouth and intestines infections
ExemptionSubject to medical prescription
Available dosage(s)400mg
ApplicationMen and women over 18 with the symptoms of a bacterial infection
UsageTake 1 tablet 3 times a day for 7 days
Drug classAntibacterial
Alcohol consumptionAvoid alcohol consumption
Breastfeeding/pregnancyCaution is recommended, ask your doctor beforehand

Note: Decisions about treatment are for both the prescriber and the person to jointly consider during the consultation. However, the final decision will always be the prescriber’s.

Metronidazole FAQs

Can Metronidazole treat urinary tract infections (UTI)?

Yes, Metronidazole can treat urinary tract infections (UTIs). However, it's not available at HealthExpress for this purpose. You can instead purchase Trimethoprim and Nitrofurantoin on prescription for UTIs here at HealthExpress.

Does Metronidazole treat chlamydia?

Metronidazole is not commonly used to treat chlamydia. Whilst it is used to treat the STI trichomoniasis, those seeking chlamydia treatment should refer here for more information.

How long does Metronidazole take to work?

Metronidazole typically starts working within a few days, but it may take up to a week for the full effects to be seen. Even if you start to feel better, you must take the full course of treatment to ensure success. If you are still experiencing symptoms after taking Metronidazole for a week, speak with your doctor.

What happens if you drink alcohol with Metronidazole?

Drinking alcohol while taking Metronidazole can cause some serious problems. You might feel sick, have stomach pain, or get hot flashes. You might also feel dizzy or drowsy. That is why you should not drink alcohol while taking Metronidazole.

Can I drink alcohol 24 hours after taking Metronidazole?

Yes, you should wait 24 hours after your last dose to drink alcohol.

Does Metronidazole make you tired?

Yes, feeling tired is a reported side effect of Metronidazole. You should wait to see how it affects you before driving or using heavy machinery.

Can Metronidazole cause thrush?

Some people who take Metronidazole may experience genital or oral thrush. If you are experiencing any symptoms of a yeast infection, you should consult your healthcare provider.

How long do side effects of Metronidazole last?

Side effects typically last for a few days after starting treatment, then disappear once your body has gotten used to the medication. If any side effects persist or worsen, contact your healthcare provider.

Can I take Fluconazole with Metronidazole?

Fluconazole (Diflucan) is a prescription and over-the-counter medicine for thrush. It can be taken with Metronidazole but if you're experiencing symptoms of thrush, it's best to speak to your doctor to make sure it's suitable for you.

Can Metronidazole affect birth control?

Yes, Metronidazole can alter the effectiveness of your combined contraceptive pill. You should avoid having sex or use barrier contraception whilst using Metronidazole if you take 'the pill'.

Can you take co-codamol with Metronidazole?

Yes, you can take painkillers while on Metronidazole. You can take medicines like paracetamol, ibuprofen and co-codamol. But you should not take co-codamol for a long time.

Can you take Amoxicillin and Metronidazole together?

You can take amoxicillin and metronidazole together if your doctor prescribed it.

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Metronidazole reviews
Pack contains 21 tablets of Metronidazole 400mg for oral use Excellent 4.7 263 patients have reviewed Metronidazole on Trustpilot
Featured reviews review
  • Turned up the next day. Was easy to fill in afew questions online than waiting weeks to see my gp

  • Used first time, helped me to deal with health issue. As I honestly gave answers on health issue questions, had no side effects or any other problems regarding product.

    Monta K
  • Following the instructions on the medication I’ve experienced no side effects. Quick to clear symptoms and was much more comfortable even after the first day dosage. Would definitely recommend, the price was more than reasonable too 👍

    Sophie B
  • It treated my bacterial vaginosis with no side effects ,and it completely cleared up .I am 100% satisfied with this service

    Sarah T
  • It’s been brilliant for me, really worked, which is such a relief, as previously just been trying products over the counter.

  • This antibiotic is excellent and with results almost immediately. I highly recommend it

    Marta S
  • Wonderful. Only two days into my course of antibiotics but they’re starting to work, I’m so pleased!

    Kat D
15 Jun

Great product. Does what it needs to do. Feeling better after only 2 days

03 Jun

Just like advertised. I need it for BV and is working wonderfully

Elena M
15 Apr

Does it's job, easy to swallow.

Alexandra B
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Further reading

What causes sexually transmitted infections (STIs)

What causes sexually transmitted infections (STIs)

Reviewed by Dr. Anand Abbot
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